2-methyl-5-isopropyl pyrazine
2-isopropyl-5-methylpyrazine
Identification
| Name | 2-methyl-5-isopropyl pyrazine |
| IUPAC | 2-methyl-5-propan-2-ylpyrazine |
| CAS Number | 13925-05-8 |
| FDA UNII | 818RIW504V |
| Molecular Formula | C8 H12 N2 |
| Molecular Weight | 136.19764000 |
| Nikkaji Number | J101.205C |
| CoE Number | 2268 |
Regulatory
| JECFA Food Flavoring | 772 2-methyl-5-isopropylpyrazine |
| DG SANTE Food Flavourings | 14.026 2-isopropyl-5-methylpyrazine |
| FEMA Number | 3554 |
| FDA | No longer provide for the use of these seven synthetic flavoring substances |
| FDA Mainterm (SATF) | 13925-05-8 ; 2-METHYL-5-ISOPROPYLPYRAZINE |
Physical Properties
| Appearance | colorless to pale yellow clear liquid (est) |
| Assay | 97.00 to 100.00 |
| Food Chemicals Codex Listed | No |
| Specific Gravity | 0.97700 to 0.98400 @ 25.00 °C. |
| Pounds per Gallon - (est). | 8.130 to 8.188 |
| Refractive Index | 1.49200 to 1.49800 @ 20.00 °C. |
| Boiling Point | 190.00 °C. @ 760.00 mm Hg |
| Vapor Pressure | 0.850000 mmHg @ 25.00 °C. (est) |
| Flash Point | 159.00 °F. TCC ( 70.56 °C. ) |
| logP (o/w) | 1.626 (est) |
| Soluble in | alcohol |
Organoleptic Properties
| Odor Description | at 0.10 % in dipropylene glycol. |
| Taste Description | green |
Safety Information
| Oral/Parenteral Toxicity | Not determined |
| Dermal Toxicity | Not determined |
| Inhalation Toxicity | Not determined |
GHS Classification
['GHS Classification in accordance with 29 CFR 1910 (OSHA HCS)', 'GHS Label elements, including precautionary statements']
Safety in Use
| Category | flavoring agents |
| Recommendation for 2-methyl-5-isopropyl pyrazine usage levels up to | not for fragrance use. |
| Maximised Survey-derived Daily Intakes (MSDI-EU) | 0.024 (μg/capita/day) |
| Maximised Survey-derived Daily Intakes (MSDI-USA) | 0.40 (μg/capita/day) |
| Structure Class | II |
| baked goods | - |
| beverages(nonalcoholic) | - |
| beverages(alcoholic) | - |
| breakfast cereal | - |
| cheese | - |
| chewing gum | - |
| condiments / relishes | - |
| confectionery froastings | - |
| egg products | - |
| fats / oils | - |
| fish products | - |
| frozen dairy | - |
| fruit ices | - |
| gelatins / puddings | - |
| granulated sugar | - |
| gravies | - |
| hard candy | - |
| imitation dairy | - |
| instant coffee / tea | - |
| jams / jellies | - |
| meat products | - |
| milk products | - |
| nut products | - |
| other grains | - |
| poultry | - |
| processed fruits | - |
| processed vegetables | - |
| reconstituted vegetables | - |
| seasonings / flavors | - |
| snack foods | - |
| soft candy | - |
| soups | - |
| sugar substitutes | - |
| sweet sauces | - |
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Potential Uses
Natural Occurrence
Synonyms
2-
methyl-5-(1-methyl ethyl) pyrazine
2-
methyl-5-(1-methylethyl)pyrazine
2-
methyl-5-(propan-2-yl)pyrazine
2-
methyl-5-isopropylpyrazine
2-
methyl-5-propan-2-yl pyrazine
2-
methyl-5-propan-2-ylpyrazine
5-iso
propyl-2-methyl pyrazine
5-iso
propyl-2-methylpyrazine
2-iso
propyl-5-methyl pyrazine
2-iso
propyl-5-methylpyrazine
pyrazine, 2-isopropyl-5-methyl-
pyrazine, 2-methyl-5-(1-methylethyl)-
US Patents:
3,952,024 - Furfurylthioacetone
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Certain 2,5-dimethyl-3-thiopyrazines